Spray head



Nov. l, 1932. 5 AL 1,885,219

' SPRAY HEAD Filed Jan. 20, 1930 \NENTQRS. 04102 H. Ems.

CAI-AW G. Gn/swow.

Patented Nov. 1, i932 warren 3 m.

raise-in emu MUD E. EELS F 12a EABEA,MD GLENN. G. @RIQWQLD, 01 E169;CALIFORNIA.

' si nna Application filed January ac, 3930. Serial Re. 4128,1289.

This invention relates to a spray head through which liquid is adaptedto be forced,

and which liquid is divided in the head into a' fine spray so that afire is more efiectively extinguished.

An object of our invention is to provide a "spray head which willatomize the liquid prior to the depositing of the liquid in the firearea, thus more effectively extinguishing the fire.

Another objeol; is to provide a spray head which can be effectively usedin an oil tank to extinguish a possible fire in the tank.

A feature of our invention is that the liquid is deposited on the oil inthe tank without agitating the oil, and without aerating the surfacelayer of oil, thus more effectively and quiiicklfy1 extinguishinga fire.

rther object is to provide a novelmeans of preventing vapors frompassing into the nozzle and into the pipe line leading thereto. v

Still another object is to provide a novel spray head which can bequickly and easily cleaned or repaired when necessary. In the drawingFigure 1 is a side elevation of our spray head with the fusible metalband partly broken away.

Figure 2 is a longitudinal, sectional view of our head.

Figure 3 is a plan view of our head with the cap removed.

Figure 4 is a side elevation of our head installed in a tank, the tankbeing broken away to show the head. 7

Referring more particularly to the drawing, the numeral 1 indicates themain body of our spray head, the lower portion of which is threaded asat 2 so that it may be cou led to a pipe 3 which may rise through theottom of a tank 4, as shown in Figure 4. There is a distinct advantagein the arrangement shown in Figure 4 in that if the cover or top of thetank should be blownpfi' as a result of the fire in the tank, the fireextinguishing equipment will not be damaged. Installations heretofore inuse extended into the tank through the top thereof, which is detrimentalfor the reasons specified above.

The pipe 3 extends to a pump (not shown) which pump is only operatedwhen a fire 0c curs in the zone about the head. The body 1 is providedwith an integrally cast spider 5, and a stem 6 rises from the spider 5.I The operation of this stem will be further described. A tapered seat 7is formed on the top of the body 1 and on this seat we position a sprayring 8. The lower surface of the ring 8 is tapered to correspond withthe seat 7 on the body. A cap9 rests on the top of the ring 8, and thecap is provided with a tapered seat 10 which rests upon a tapered seatformed on the top of the ring. A .nut 11 screws on to the stem 6 againstthe cap, thus securely holding the body, ring and cap together. It willbe evident that by simply removing the nut 11, the cap and ring 8 can beremoved for cleaning or replacement purposes.

The ring 8 is tapered outwardly at the top and bottom thereof as at12-13.' There being a central annular recess 14 between the taperedportions 12,13. In the ta ered edges 1213 we provide a plurality 0 out-5 let slots or openings 1516 respectively through which the liquidpasses. The liquid in passing through these openings under pressure, isbrought together midway between the edges 1213 in a horizontal sheet,and is finely atomized or broken up due to the impact of the oppositestreams'of liquid. The fine spray of liquid settles down upon theignited surface and due to the large liquid surface thus created,absorbs a greater quantity of heat which results in extinguishing thefire.

When used in connection with an oil tank, it is desirable that vapors beexcluded from the head, and the communicating pipe line, and forthispurpose we provide a fusible or breakable band 17. This band encirclesthe head between the cap 9 and the body 1 completely covering theopenings 15-16, and thus excluding any vapors. A ring 18, or 95 similarexpedient, serves to hold the band 17 in position. a

In the installation as shown in Figure 4, the head is above the normallevel of the oil in the tank. However, if the level should be 1' movablyseated on the body,

accidentally raised to above normal, the band 17' will prevent the oilfrom flowing into the head and pipe 3. a

The ring 8 is rfectly symmetrical as to the upper and ower range 12-13so that either end thereof can be seated .upon the body land will fitperfectly thereon. Also due to the fact that the tapered surfaces and 10are annular, it'is not necessary to position the ring in any particularway.

' lhe stem 6 may be integrally formed with the spider 5 or may be casttherein as a separate part, as desired.

Having described our invention,

l. A spray head comprising a body a pipe coupling means on the body, aspray ring rea cap removably seated on the ring, means securing saidbody and cap together and said spray ring having a plurality of liquid 0rings therein, said ring being formed wit oppositely inclined. surfaces,said openings extending through both of said surfaces and oppositelyarranged whereby the streams therethrough impinge to form a spray.

we claim:

2, A spray head comprising a body, pipe coupling means on the bed aspray ringremovably seated on the ho y, a cap removahly seated on thering, means securing said hody and cap together and. said spray ringfineness a bolt rising from said removably seated on the hodiy a capremovably seated on the ring, sai holt extendin through the cap, a nutscrewed on to the be t against the cap whereby the cap, ring and bodyare held together, said ring having a 'pluraht-y of openings thereinthroug which the liquid is forced, said ring bein formed with inclinedribs at the top and ottom thereof, said openings extending through theribs through the openings against each other to form a ifinely dividedsheet of liquid, and a fusible ring surronndin said head and enclosinthe openings in t e ring.

t5. or use in producing a liquid spray, a hollow cylindrical head memberhaving enspider in the hotly, spider, a spray ring larged portions ateach end provided with oppositely disposedfaces having oppositelydisposed inclined outlet ports therein so arranged that-the jetstherefrom im inge upon each other to discharge a spray su stantiallynormal to the axis of said head. 7

lln testimony whereof, we afix our signatures.

-; i H. BS.

LENN G GRISWOLD.

having a plurality ofliquid opegs there i in, said openings. beingpositioned adjacent the top and the bottom of the ring and'direct edtowards each other wherelo liquid forced spider a spray rin through theopenings is broug t together in a sheet, thus finely dividing theliquid.

3 A spray head comprising a hody, spider inthe hody, a bolt rising fromsaid removably seated on the hody, a cap remove ly seated on the ring,said holt extending throughthe cap, a nut screwed on to the holtagainstthe cap whereby the cap, ring andlhody are held together, said ringhaving p'lurali 'ofjo enings therein through which the liquid is orced,said ring heing formed with oppositely inced sur lldC6S, Smd"eninext'ending through hoth of and sinuses d oppositely arranged wherebythe stre theretough impinge to form aspra a d. A spray head compg ahody, a

spider in the body, a bolt rising ironu said spider, a spray rinremovably seated on the hody, a capreinova 'ly seated on the ring, saidbolt extendin through the cap, a nut screwed on to the ho t against thecap whereby the cap, ring and body are held together, said ring having aplurality of openings therein through which the liquid is torced, saidring hein formed with inclined rihs at the top and ottom thereof, saidopenings extending through the ribs thereby directing the stre throughthe o enings against each other to form a finely 'vided sheet of liquid.7

5. A spray head comprising a hody, a

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